CN103277584A - Lead screw driving and jacking system - Google Patents
Lead screw driving and jacking system Download PDFInfo
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- CN103277584A CN103277584A CN2013101431363A CN201310143136A CN103277584A CN 103277584 A CN103277584 A CN 103277584A CN 2013101431363 A CN2013101431363 A CN 2013101431363A CN 201310143136 A CN201310143136 A CN 201310143136A CN 103277584 A CN103277584 A CN 103277584A
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- lead screw
- speed reducer
- worm speed
- shaft coupling
- transmission jack
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Abstract
The invention discloses a lead screw driving and jacking system. The lead screw driving and jacking system comprises a double-output shaft motor, a universal spindle coupling, a steering gear reducer, a first worm gear reducer and a second worm gear reducer. Two shafts of the double-output shaft motor are connected with the universal spindle coupling respectively. The other end of the universal spindle coupling is connected with the steering gear reducer which is connected with the first worm gear reducer. The other end of the first worm gear reducer is connected with the universal spindle coupling. The other end of the universal spindle coupling is connected with the second worm gear reducer. By the adoption of the technical scheme, locating is accurate, jacking is stable, and the position of an upper ballast device can be reliably kept unchanged even under the effect of bearing large tension force.
Description
Technical field
The present invention relates to maritime works's machinery, more particularly, relate to the lead screw transmission jack-up system that a kind of pipe laying barge is used stretcher.
Background technique
Domestic pipe laying barge rarely has design with stretcher and makes, so the design proposal of relevant stretcher parts is considerably less.Usually stretcher needs in the jacking ballast device to higher position to be convenient to pipeline when inserting pipeline to insert, need to reduce the ballast device again to specific height before clamping pipeline, need to maintain the relation of the position between the ballast device up and down when clamping pipeline again, the component that these operating modes derive for the maintenance of the position between the ballast device about the stretcher and jacking effect have certain requirement.
Connect each other by 4 large tanks between the ballast device habitually in the past up and down, jacking and decline and up and down the maintenance of ballast device relative position all be to finish by these four large tanks.Yet the large tank that utilizes hydraulic control has some shortcomings and not tractable problem, such as draining pollute, the location is not accurate up and down, it is synchronous etc. that jacking is difficult for.
Summary of the invention
Purpose of the present invention aims to provide a kind of lead screw transmission jack-up system, solves that the draining that exists in the prior art pollutes, the location is not accurate up and down, and jacking is difficult for problems such as synchronous.
According to the present invention, a kind of lead screw transmission jack-up system is provided, comprising: twoly go out shaft motor, universal shaft coupling, turn to retarder, first worm speed reducer, second worm speed reducer.Connect universal shaft coupling respectively on two two axles that go out shaft motor, the other end connection of universal shaft coupling turns to retarder, turn to retarder to be connected with first worm speed reducer, the other end of first worm speed reducer connects universal shaft coupling, and the other end of universal shaft coupling connects second worm speed reducer.
According to one embodiment of the invention, twoly go out shaft motor and be fixedly connected by base and external frame, the remaining part of lead screw transmission jack-up system and last ballast device, the ballast device is fixedly connected down.
According to one embodiment of the invention, also comprise the multi-filament thick stick, the leading screw lower end is the spline form, is connected by universal shaft coupling with second worm speed reducer with first worm speed reducer respectively, the leading screw bottom arranges tapered roller bearing.
According to one embodiment of the invention, leading screw is connected by the downside retaining with following ballast device.
According to one embodiment of the invention, wherein a rhizoid thick stick lower end is passed first worm speed reducer and is connected with encoder.
According to one embodiment of the invention, the leading screw top does not add any constraint, and free floating, the shelf at top connect the flexible leather sheath that the protection leading screw is not subjected to contamination by dust.
According to one embodiment of the invention, last ballast device is connected with leading screw by big nut, and big nut is blocked at the upside of last ballast device by Bolt Connection.
According to one embodiment of the invention, leading screw has 4, all leading screws turn to unanimity.
According to one embodiment of the invention, universal shaft coupling all is extension type, and the universal shaft coupling between first worm speed reducer and second worm speed reducer passes down ballast device structure.
According to one embodiment of the invention, the leading screw surface design has screw thread, and lead angle is self-locking structure; Worm type of reduction gearing is self-locking structure.
According to one embodiment of the invention, turn between retarder and first retarder break is set.
Adopted technological scheme of the present invention, accurate positioning, jacking is steady, is bearing the invariant position that also can maintain the ballast device under the big pulling force effect reliably.
Description of drawings
In the present invention, identical reference character is represented identical feature all the time, wherein:
Fig. 1 is the structural representation of lead screw transmission jack-up system of the present invention;
Fig. 2 is the part block diagram of lead screw transmission jack-up system;
Fig. 3 is the part block diagram of lead screw transmission jack-up system;
Fig. 4 is the schematic representation of thick stick transmission jack-up system in stretcher;
Fig. 5 is the schematic representation of thick stick transmission jack-up system in stretcher.
Embodiment
Further specify technological scheme of the present invention below in conjunction with drawings and Examples.
The present invention cancels the hydraulic jack scheme of usual use, adopt machinery type completely to realize last ballast device jacking is descended and the function of holding position when stressed, the problems of hydraulic jack scheme have been avoided, practical effect is good, from at present domestic, also be to adopt such scheme first, enriched the structure design form of pipe laying barge with stretcher.
Can see that by Fig. 4 and Fig. 5 the residing position of lead screw transmission system in stretcher reaches and the assembly relation of other parts.Stretcher lead screw transmission system goes out shaft motor 8 controls by two, finally moment of torsion is delivered on the leading screw 15 by universal shaft coupling and retarder, by the screw pair that is fixed on the structural big nut of ballast 17 and leading screw 15 rotation is converted to straight line then and move up and down, thereby reach the purpose of ballast device in the jacking.
Two variable-frequency motor that shaft motor 8 adopts 15kW/1000rpm that goes out of the present invention transmits layer by layer by each shaft coupling and retarder, speed jacking that finally can 300mm/min and descend and go up ballast device 2.From the reality invention, jacking process steady and smooth, location are accurately, and be respond well.
Connect universal shaft coupling 9 respectively on two two axles that go out shaft motor 8, the other end connection of universal shaft coupling turns to retarder 10, turn to retarder 10 to be connected with worm speed reducer 12, the other end of worm speed reducer 12 connects universal shaft coupling 13, and the other end of universal shaft coupling 13 connects worm speed reducer 14.
Owing to two go out shaft motor and be fixedly connected by base and external frame 1, and the parts of all the other lead screw transmission systems and last ballast device 2 and following ballast device 4 are fixedly connected, again because only with a motor driving, turn to retarder 10 apart from each others with first, so it is proper adopting universal shaft coupling 9, twoly in the accompanying drawing go out shaft motor 8 and be arranged to straight line with 2 universal shaft couplings 9, be assembled into the angle that has in the certain limit and also be fine according to designing needs and actual conditions.In like manner, the mode of universal shaft coupling 13 has also been adopted in worm speed reducer 12 and 14 rotating speed transmission between the 4 rhizoid thick sticks 15, and universal shaft coupling 9 and 13 all is extension type.Because 4 rhizoid thick sticks are positioned at the stretcher both sides, so universal shaft coupling 13 need pass down ballast device structure.
The lead screw transmission system has adopted 6 retarders, 2 common retarder 10 and 4 worm type of reduction gearings (12 and 14) of turning to.The rpm level that turns to retarder 10 to be used for that motor is passed over is changeed 90 ° and is passed to worm speed reducer 12, and worm speed reducer 12 continue on the one hand rotary speed direction constant pass to worm speed reducer 14, on the one hand slow down and vertical duction after speed is passed to the leading screw 15 of vertical placement, worm speed reducer 14 only needs to slow down and is diverted to Vertical direction and gets final product to leading screw." ﹢-" number shown from axle head and to have looked in turning to of each motor reducer shaft in the accompanying drawing, can see that finally under same driven by motor, turning to of 4 rhizoid thick sticks is consistent.
The lower plane of the lower end step of 4 lead screw shaft 15 is bearing on 1 tapered roller bearing at 20 places respectively, bearing bears all gravity effects that pass over from leading screw, these gravity are delivered to again on each downside retaining 7, be delivered to down then on the ballast structure 4, finally be delivered to the boat deck base by lower support 5, then to keep off 7 structural plans relative, slightly gapped with downside on the last plane of lower end step.When not clamping pipeline 3, stretcher leaves standstill or jacking the time, the tapered roller bearing of 15 times end bearings of leading screw can carry the gravity effect, can make that again rotational resistance is as much as possible little, and when stretcher clamping pipeline 3 carries out normal pipelaying work, what whole leading screw 15 was subjected to is pulling force, axle power under the gravity effect of comparing is bigger, this power forces leading screw 15 lower end step surface lower planes to disengage with tapered roller and makes on the step plane keep off 7 structures with downside and contacts, not only help to make more and can stressed structure carry active force, more because the pillow block terrace compresses to contact with the plane of structure and increased rotational resistance, the holding position was motionless highly beneficial when this clamped pipeline for stretcher.The leading screw lower end is the spline form, connects with worm speed reducer 12, only transmits torsional interaction, and wherein a rhizoid thick stick lower end is passed worm type of reduction gearing 12 and connected with encoder, in order to detect the height and position of rotating speed and jacking.Leading screw 15 tops do not add any constraint, and free floating, the shelf 18 of placement are to connect the flexible leather sheath 16 that the protection leading screw is not subjected to contamination by dust.
No matter be gravity effect (when not clamping pipeline) or pulling force effect (when clamping pipeline), stretcher can both guarantee reliably that the ballast device keeps static in certain location, to guarantee pipe laying condition establishment and safe and reliable.Mainly rely on 3 points: but leading screw 15 lead angles are designed to energy self-locking, worm type of reduction gearing 12 and 14 self-lockings, add break 11 clamping inhibition rotations.
The jacking of last ballast device and the linear relative movement of dependence big nut 17 on leading screw 12 that descend, big nut keeps off on 7 by the upside of Bolt Connection at last ballast device, 4 upside retainings 7 are owing to lead and restriction with contacting of external frame 1, cause the ballast device to move up and down and can not unitary rotation, when leading screw 15 rotates, drive big nut 17 and move up and down along leading screw 15, and big nut 17 is joining upside retaining 7 by bolt last ballast device is slowly being mentioned.
By the control to two shaft variable-frequency motors 8, can change the speed of jacking and decline as required, connect the height that encoder 19 can realize detecting and controlling automatically according to pipeline diameter the ballast device by the leading screw lower end, locate very accurate.This so far as is known is first domestic at pipe laying barge with the pure machinery type jacking scheme on the stretcher, compare original hydraulic jack jacking mode, the control of fabulous, the no leakage of oil pressure release of synchronism hidden danger, speed is convenient, be easy to detect and control height, accurate positioning, realization simply and cost unlike original hydraulic solution height.
As a preferred embodiment of the present invention, side retaining 7, retarder 12,14 and leading screw 15 etc. parts all because the position relation is slightly different, but function logic is consistent, for convenience, so with same numbering representative.In like manner, numbering 20 is expressed as place, a place (leading screw supporting place), non-a certain component, and numbering 6 is the general designation of lead screw transmission system.
The present invention has replaced the scheme of original stretcher hydraulic lifting first with pure mechanical mode, adopt 1 two go out shaft motor and link to each other with worm type of reduction gearing by universal shaft coupling, driving 4 leading screws of vertically placing rotates, by leading screw be fixedly connected in the up and down spiral motion of the structural big nut of ballast device, the ballast device moves up and down in the drive.
Simultaneously; the present invention utilizes the self-locking of leading screw own, worm type of reduction gearing self-locking and the break triple protection is set under the big active force when keeping stretcher to clamp pipeline and keeps the invariant position of ballast device up and down; actual motion is respond well; accurate positioning; jacking is steady, is bearing the invariant position that also can maintain the ballast device under the big pulling force effect reliably.
Those of ordinary skill in the art will be appreciated that above specification only is one or more mode of executions among the numerous embodiments of the present invention, and is not to use limitation of the invention.Any for the above embodiment equalization variation, modification and be equal to technological schemes such as alternative, as long as connotation scope according to the invention, all will drop in the scope that claims of the present invention protect.
Claims (11)
1. a lead screw transmission jack-up system is characterized in that, comprising:
Twoly go out shaft motor, universal shaft coupling, turn to retarder, first worm speed reducer, second worm speed reducer;
Connect universal shaft coupling respectively on two two axles that go out shaft motor, the other end connection of universal shaft coupling turns to retarder, turn to retarder to be connected with first worm speed reducer, the other end of first worm speed reducer connects universal shaft coupling, and the other end of universal shaft coupling connects second worm speed reducer.
2. lead screw transmission jack-up system as claimed in claim 1 is characterized in that, twoly goes out shaft motor and is fixedly connected by base and external frame, and the remaining part of lead screw transmission jack-up system and last ballast device, the ballast device is fixedly connected down.
3. lead screw transmission jack-up system as claimed in claim 2, it is characterized in that also comprising the multi-filament thick stick, the leading screw lower end is the spline form, is connected by universal shaft coupling with second worm speed reducer with first worm speed reducer respectively, and the leading screw bottom arranges tapered roller bearing.
4. lead screw transmission jack-up system as claimed in claim 3 is characterized in that, leading screw is connected by the downside retaining with following ballast device.
5. lead screw transmission jack-up system as claimed in claim 3 is characterized in that, wherein a rhizoid thick stick lower end is passed first worm speed reducer and connected with encoder.
6. lead screw transmission jack-up system as claimed in claim 3 is characterized in that, the leading screw top does not add any constraint, and free floating, the shelf at top connect the flexible leather sheath that the protection leading screw is not subjected to contamination by dust.
7. lead screw transmission jack-up system as claimed in claim 3 is characterized in that, last ballast device is connected with leading screw by big nut, and big nut is blocked at the upside of last ballast device by Bolt Connection.
8. lead screw transmission jack-up system as claimed in claim 3 is characterized in that, leading screw has 4, all leading screws turn to unanimity.
9. lead screw transmission jack-up system as claimed in claim 3 is characterized in that, universal shaft coupling all is extension type, and the universal shaft coupling between first worm speed reducer and second worm speed reducer passes down ballast device structure.
10. lead screw transmission jack-up system as claimed in claim 3 is characterized in that, the leading screw surface design has screw thread, and lead angle is self-locking structure; Worm type of reduction gearing is self-locking structure.
11. lead screw transmission jack-up system as claimed in claim 1 is characterized in that, turns between retarder and first retarder break is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310143136.3A CN103277584B (en) | 2013-04-23 | 2013-04-23 | Lead screw driving and jacking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310143136.3A CN103277584B (en) | 2013-04-23 | 2013-04-23 | Lead screw driving and jacking system |
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| Publication Number | Publication Date |
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| CN103277584A true CN103277584A (en) | 2013-09-04 |
| CN103277584B CN103277584B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310143136.3A Active CN103277584B (en) | 2013-04-23 | 2013-04-23 | Lead screw driving and jacking system |
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| CN (1) | CN103277584B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3739971A (en) * | 1970-04-09 | 1973-06-19 | Saipem Spa | Piping tensioning device |
| NO971058L (en) * | 1994-09-08 | 1997-03-07 | Europ Marine Contractors Ltd | Method and arrangement for laying a pipeline from a vessel |
| CN101791754A (en) * | 2010-01-04 | 2010-08-04 | 国营红阳机械厂 | Die repairing device |
| CN201891932U (en) * | 2010-11-30 | 2011-07-06 | 天津工程机械研究院 | Height adjusting device of marine pipe laying tensioner |
| CN201909111U (en) * | 2010-11-29 | 2011-07-27 | 天津市海王星海上工程技术有限公司 | Lifting and strengthening drive mechanism of tensioner for pipe-laying ship |
-
2013
- 2013-04-23 CN CN201310143136.3A patent/CN103277584B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3739971A (en) * | 1970-04-09 | 1973-06-19 | Saipem Spa | Piping tensioning device |
| NO971058L (en) * | 1994-09-08 | 1997-03-07 | Europ Marine Contractors Ltd | Method and arrangement for laying a pipeline from a vessel |
| CN101791754A (en) * | 2010-01-04 | 2010-08-04 | 国营红阳机械厂 | Die repairing device |
| CN201909111U (en) * | 2010-11-29 | 2011-07-27 | 天津市海王星海上工程技术有限公司 | Lifting and strengthening drive mechanism of tensioner for pipe-laying ship |
| CN201891932U (en) * | 2010-11-30 | 2011-07-06 | 天津工程机械研究院 | Height adjusting device of marine pipe laying tensioner |
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| Publication number | Publication date |
|---|---|
| CN103277584B (en) | 2015-06-10 |
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| CB03 | Change of inventor or designer information |
Inventor after: Chen Fuqiu Inventor after: Wang Xuejun Inventor after: Yang Qin Inventor before: Chen Fuqiu Inventor before: Wang Xuejun Inventor before: Yang Qin Inventor before: Wu Zhengfeng |
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Free format text: CORRECT: INVENTOR; FROM: CHEN FUQIU WANG XUEJUN YANG QIN WU ZHENGFENG TO: CHEN FUQIU WANG XUEJUN YANG QIN |
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